Unify All System Calls in SafePOSIX

[rennergade]

Currently we have some system calls in SafePOSIX, but others have end points in NaCl.

We'd like to have all systemcalls pass through to SafePOSIX regardless.

A good starting point is to find which Syscalls aren't implemented in SafePOSIX currently.

[rennergade]

I've assigned @liuchang513 to help with this task. Kaitlyn, when the wiki issue is completed and you feel comfortable enough with Lind to start working on the project, this is where you should start. You can refer to Jonathan for advice here as he's started some work on this.

[jesings]

• getgid()
• getegid()
• getuid()
• geteuid()
• setgid()
• setregid()
• setuid()
• setreuid()
  Here are some easy ones that I can think of off the top of my head, the get ones should probably be easiest, so working on those first is probably best.

[rennergade]

As discussed in the meeting today here is the code for the glibc getuid. There are similar files for geteuid, getgid, and getegid. Let's test these syscalls further to confirm what we're seeing in the code here.